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308 Plan Review 2016 308 a6'3 �e/t �e/d &d 7 PLAN REVIEW- SYSTEM COMPONENTS City/Town lit ' 4 ) Application No. / n Lot Numb * Address PI//SCO C!J i O/() J OWNE �a R ".c-C � Al./ ! / k NAME ti, c AADDRE SS 311 CZ2 SK T / ��(�OC WNER TELEPHONE# ( ) 3—e9 -//57. DESIGN /14 / ENGINEER SANITARIAN / / ,-n %(4r'/,vNis FACILITY DESIGNED FOR V ,/� �l,/. A. Single or Multifamily dwelling /" e� �'4S' " e — kJ # Bedrooms Garbage Disposal yes no Total Design Flow 3 30 gallons per day B. Other (describe) Design Basis Total Design Flow 3 32 gpd DK iI COMMENTS or PROBLEMS: /:1' FILE COPY Pager I of 16 BUILDING SEWER ITEMS TO NOTE: / 411. v/ Pipe diameter I/ �/J� Schedule of pipe 7 " ?Y G `Z l% watertight joints V/ Slope (min for 4" pipe is 0.01 or 1/8" per foot; desired slope is 0.02 or '''A" per foot) 7 Invert elevation at building / O pp . 57) Length a Alignment and grade (manholes required at changes in both alignment and grade.) Manhole(Must have metal frame and cover at grade) Pager 2 of 16 SEPTIC TANK / Tank size at least 200 % of design flow / (minimum tank size is 1,500 gal) algr �/ / • from inlet to outlet u K v Minimum 4' liquid depth / Tees extend 6"above flow line J/ Inlet tee 10" below flow line (minimum) VL Air space(3"above tees, 9" above flow line) Depth of outlet tee (minimum 14") 'l/ Access manhole over center of tank and each tee l ."....- Number of compartments = ( ____77..C, Gas baffle on new construction Septic tank detail provided Buoyancy calculation (if necessary) C-------- On On 6" crushed stone Pager 3 of 16 DISTRIBUTION BOX ITEMS TO NOTE: .-. Inlet elevations Outlet elevations Drop (inlet- outlet) Sump (6" minimum) Baffle or inlet tee All outlets at same elevation ventilation Manhole cover to grade # of outlets size of outlets (diameter) ! " Distribution laterals: No, Size Detail Provided Pngcr4 of 16 LEACH FIELD Items to note: _ Dimension of field(s): Leng Width _ Number of fields Fi d separation (10 ft. min) Total area provided for disposal (sq. ft.) (1 x w x no. of fields) _ Gallons of treatment provided: Bottom area x loading factor(from 15.242) = gal. (must be equal or greater than design flow) Note: Leaching area must be increased if garbage grinder is used. Elevation of bottom of the field (must be 4 ft/or 5 ft above max. high groundwater depending on perc rate.) Number of distribution pipes Type Length (100'max.) Slope (min. 0.005) Spacing(6' max.) Depth of stone beneath pipe (min 6") Plan states stone is double washed _ 2"cover of 1/8"to 'A"stone over pipe crown _ Ends capped Aggregate depth 6" minimum and 12"maximum Depth of cover material above stone(min.9") _ Construction of leaching facility in fill? Yes No _ Fill is specified as TitleV on plan Certification on fill submitted Fill is specified for 5' around entire system _ Separation between lines (6 ft maximum) Separation between lines and edge of bed -four feet maximum. Pager 5 of 16 LEACHING TRENCHES _ Number of trenches length_ (max.100')width_(min.24) Depth of stone beneath pipe (6" min ) Leaching area available bottom=length x width x no. trenc s= sides =length x depth (2'max)x w x if trenches sq ft. TOTAL = sq ft. note: the effective depth shall be equal t the depth of the trenches below the invert of the distribution pipe u' to maximum of 2 ft. Leaching are requirements: Total leaching area (bottom plus sides)x load' g factor=gallons treated Loading factor is based on perc rate(see 15.242 Total gallons treated by system design must be> esign flow fo system LEACHING AREA REQUIREMENTS SATISFI i? es ,No (note: leaching area must be increased if garbage s inder is used) Ground water elevation: 4 feet or 5 feet separation between trench bottom and max. high groundwater. Trench spacing 3 x effective width or depth whichever is greater _ Trench width 4 ft maximum Pipe slope (min. 0.005 slope,or 6"per 100 feet) _ BackfID depth (min. of 9") _ Ends capped Distribution lines exceeding 50 ft are vented. Diameter of distribution pipe (min.3") _ Distribution line orifice(min.3/8, max %") The area between trenches shall be designated as reserve area only where the separation distance between the excavation sidewalls is at least six feet. FBI is specified as Title V on plan Certification on Fill submitted Fill is specified for 5"around entire system Pager 6 of 16 PLAN REVIEW CHECKLIST GENERAL INFORMATION CHECK TO VERIFY THAT THE PLAN INCLUDES THE FOLLOWING REQUIRED INFORMATION: "MASS. REG. SANITARIAN, or_MASS. P.E. stamp and signature "Scale of 1"=40' for plot plan Scale of 1"=20' for system component details boundaries of the facility being served including easements which could affect the impact the system installation/performance. ' All dwellings, buildings existing and proposed impervious areas 4----Location of all existing and proposed impervious areas C---Location and dimensions of the system including reserve area Design calculations: Sewage flow gpd Septic tank size required gpd "provided gpd North arrow,existing and proposed contours Location and log of deep hole observation test da test existing grade elevations for each test Pager 7 of I6 PLAN REVIEW CHECKLIST (cont.) Name of approving authority representative Name & approval no. of soil evaluator e..------- Location and results of pert test Cplate of pert test !/ Location of water lines and other subsurface utilities on facility eJ/Observed groundwater elevation in vicinity of the system _ complete profile of the system _JA note on the plan listing all variances to the provisions of /310 CMR 15.00 and local requirements sought in conjunction with the plan _ Location and elevation of benchmark within 50 to 75 feet of the facility which is not subject to dislocation or loss during conjunction of the facility f dosing system complete design and specifications of the system dosing chamber capacity; required , provided _ number of dosing cycles, depth of cycles Pager 8 of 16 PLAN REVIEW CHECKLIST (CON'T) Recirculating Sand Filters Complete plans and specifications hydraulic profile location of the treatment works and nearest existing street __ street and lot number Pager 9 of 16 DOSING TANK Dimensions L x W x D = Vol. Number/size of siphons Number and size of pumps (No._, Capacity_gpm Discharge size Manholes to grade Groundwater elevation (min. 1 ft below inlet) Pump controls Alarm (on separate power circuit) Buoyancy calculations(if needed) Pump system calculations Pager 10 of 16 LEACHING CHAMBERS/PITS ITEMS TO NOTE Manufacturer a /1fe S11-- Installation Bed Formation Number of beds of trenches Length edixe�� Width ?� Depth Leaching area available: y 717. y bottom: (length x width x no. of pits)= 50 sC �P( ��/�� sides: (2 x (length x depth (2'max.)+(2 x (width x depth (2'max) x 4 of pits. Total leaching area available= , LEACHING AREA REQUIREMENTS: Total leaching area (bottom +sides) x loading factor from 15.242 330 gals. This must be greater than or equal to the design flow for the system. Increase leaching area if garbage grinder is used. Distribution Trenches:every 20 feet Beds: area for pipe not to exceed 60 x 60 feet _It's Spacing Trenches: 2 x effective depth or width Beds: 4 feet between excavation sidewalk. Manholes (min -one 20"access per unit; a 24"diam for>2,000 gal units) VStone around chamber (12" to 48" of% " to 1 '4"stone) 1"1'cover of 1/8" to 'A" stone 4' separation between max. high GW and trench bottom? Yes ✓ No Pager I I of 16 PLAN REVIEW- SYSTEM SITING Performed By. Approval N Witnessed By. Date Location Address or Owner's Name, Lot Number: Address and Telephone No. Office Review Published Soil Survey: NO_ YES_ Year Published Publication Scale Soil Map Unit Drainage Class Soil Limitations Surflcial Geologic Report Available: No Yes_ Year Published Publication Scale Geologic Material(Map Unit) Landform Flood Insurance Rate Map: Above 500 year flood boundary No Yes Within 500 year boundary No Yes_ Within 100 year flood boundary No Yes Pager 12 of 16 Welland Area: National Wetland Inventory Map(map unit) Wetlands Conservancy Program Map(map unit) Current Water Resource Conditions (USGS): Month Range: Above Normal_ Normal Below Normal Other References Reviewed: Minimum setback distances (where applicable)shall be shown on the plan for the proposed disposal facility (septic tank and soil absorption system.) Soil Absorption Septic Tank System (SAS) Property line 10 10 Cellar walVinground swimming pool 10 20 Slab Foundation 10 25 Water supply pressure line 10 10 Surface waters (except wetlands) 25 50 Pager I3 of I6 Septic Tank SAS Bordering vegetated wetlands, salt marshes, inland and coastal banks 25 50 SURFACE WATER SUPPLY _Reservoirs and impoundments 400 400 _Tributaries to SWS 200 200 _Wetlands bordering SWS or tributaries thereto 100 100 Certified Vernal Pools 100 - 100 __Private water supply well or suction line 50 100 PUBLIC WATER SUPPLY WELL Gravel packed 400 400 Tubular 250 250 Irrigation well 10 25 Open, subsurface, or surface drains which discharge to SWS or tributaries thereto 50 100 Pager 14 of 16 Soil Absorption Septic Tank System __Other open, surface or subsurface drains (ex- cluding foundation drains) which intercept seasonal high groundwater 25 50 _Other open, surface of subsurface drains (ex- cluding foundation drains 5 10 _Leaching and catch basins & drywells 10 25 _Downhill slope N/A 15' (min) to top of 3:1 slope Inspection Port(s) ._Magnetic Tape Correct#of deep hole per code revision Note: slope stabilization shall be provided (including retaining walls) when an adjacent downhill slope to a disposal facility is greater than 3:1. Pager IS of 16 EFFLUENT LOADING RATES (gpd/sq. ft./day) PERC.RATE SOIL CLASS (min./in.) CLASS I CLASS H CLASS III CLASS IV <5 0.74 0.60 - - 6 0.70 .0.60 - - 7 0.68 0.60 - - 8 0.66 0.60 - - 10 - 0.60 - - 15 0.56 0.37 - 20 0.53 0.34 - - 25 - 0.40 0.33 30 - 0.33 0.29 - Loading criteria listed below apply only to the upgrade of existing systems pursuant to 310 CMR 15.405 (1) (c) or systems constructed pursuant to 310 CMR 15.417 40 - - - 60 - 0.25 0.15 Pager 16 of 16